Messages in this thread | | | Subject | Re: [PATCH 3/3] ACPI: ARM64: support for ACPI_TABLE_UPGRADE | From | Jon Masters <> | Date | Tue, 17 May 2016 12:48:53 -0400 |
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On 05/17/2016 12:44 PM, Jon Masters wrote:
> 1). During development of a platform, it is much easier to debug > problems with tables if you can test replacement ones without having to > respin the firmware. In the server world, you usually don't have the > firmware source code, so to get it respun could be days-weeks even if > you are working with the authors closely. We have practically used this > feature on a number of platforms already and it will continue.
For example, on one platform we were unable to fully boot RHEL(SA) due to a bug in one of the ACPI tables. But I was able to boot the system to a ramdisk containing a uuencode library and then write out the content of the tables over the serial port, then decompile/patch/recompile, and override replacement tables on the system. Then we beat the vendor up with the fixes and the official firmware was corrected.
-- Computer Architect | Sent from my Fedora powered laptop
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